Grain-car door



-(No Model.) f

T.-BUTTERWORTH.-

Grain Car Door.

Patented Feb. 8, 1881.

7AWLTNESSES s ATTORNEYS N.PE'TERS PHDTO-LITNOGRAPMER. WASHINGTON. C.

UNITED STATES PATENT OFFICE.

THEODORE BUTTERWORTH, OF QUINCY, ILLINOIS.

GRAIN-CAR DOOR.

SPECIFICATION forming part of Letters Patent No. 237,482, dated February 8, 1881.

Application filed December 4, 1880. (N0 model.)

To all whom it may concern:

Be it known that I, THEODORE BUTTER WORTH, of Quincy, in the county of Adams and State of 1llinois,have invented anew and valuable Improvement in Grain-Oar Doors; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

This invention relates to doors for graincars; and it consists in the construction hereinafter described.

In the drawings hereto annexed, Figure 1 is an elevation of the door closed. Fig. 2 is a perspective of the door detached. Fig. 3 is an end view, partly in section. Figs. 4 and 5 are details.

A represents the side of the car, and B the door-opening. To one side of said opening there is attached to the side of the car a loop, (3. D represents the door.

To the straight end E is attached the stapleloop G. This staple-loop G is formed by takin g a metal bar or strip narrower atits middle portion, a, than the remaining portions b b, and twisting said bar or strip until the arms or portions 1) b are at right angles to each other and their faces parallel. One arm, I), is then secured to the outer face of the batten or door at the straight end F, the other arm, I), passed through the eye or loop 0 and secured to the inner face of the door, near its upper horizontal edge, as shown in Fig. 2.

By this construction a loop is formed calculated to resist strain, since, the ends being at H is a shoe corresponding in size and shape to the edge E of the door.

In use the door fits down on sill K, with its edge E held in shoe H. To open the door it is lifted up clear of the shoe H, then turned around loop 0 as a pivot backward, and rested upon the car-floor again. To produce such action the loop 0 is made swiveled, so that it may turn with the door, and is fastened with a nut-lock through the door-post. By these two loops, as described, a species of universal joint is formed, which permits a free movement of the door, as has been described, and holds the same firm to its place and prevents it frombeing torn off.

A swivel or universal joint at the upper rear corner of a grain-car door is not broadly new, and is claimed herein only as specially constructed.

What I claim is- In a grain-car door, the combination of the loop 0, swiveled in the side of the car, with the metal bar, twisted at a, and having its arms 11 I) at right angles to each other and their faces parallel, secured to the door D, substantially as and for the purposes set forth.

In testimony that I claim the above I have of two witnesses.

'1. BnTTEEWoETH.

Witnesses A. GATGHELL, P. A. MARKS.

hereunto subscribed my name in the presence 

